### Create and Manipulate SIMD-Aligned Vectors in Rust

Source: https://github.com/ralfbiedert/simd_aligned/blob/master/README.md

This example demonstrates how to create `VecSimd` instances for `f64` elements, ensuring proper memory alignment for fast access. It shows how to obtain a flat, mutable view of the vector to set individual elements and then perform SIMD operations using the underlying `f64x4` types.

```Rust
use simd_aligned::*;

// Create vectors of `10` f64 elements with value `0.0`.
let mut v1 = VecSimd::<f64x4>::with(0.0, 10);
let mut v2 = VecSimd::<f64x4>::with(0.0, 10);

// Get "flat", mutable view of the vector, and set individual elements:
let v1_m = v1.flat_mut();
let v2_m = v2.flat_mut();

// Set some elements on v1
v1_m[0] = 0.0;
v1_m[4] = 4.0;
v1_m[8] = 8.0;

// Set some others on v2
v2_m[1] = 0.0;
v2_m[5] = 5.0;
v2_m[9] = 9.0;

let mut sum = f64x4::splat(0.0);

// Eventually, do something with the actual SIMD types. Does
// `std::simd` vector math, e.g., f64x8 + f64x8 in one operation:
sum = v1[0] + v2[0];
```

--------------------------------

### SIMD-Aligned Performance Benchmarks

Source: https://github.com/ralfbiedert/simd_aligned/blob/master/README.md

This snippet presents benchmark results comparing the performance of `simd_aligned` operations against traditional scalar and packed vector approaches. It illustrates that `simd_aligned` maintains high performance, comparable to optimized SIMD operations, without the complexity of manual alignment.

```Rust
test vectors::packed       ... bench:          77 ns/iter (+/- 4)
test vectors::scalar       ... bench:       1,177 ns/iter (+/- 464)
test vectors::simd_aligned ... bench:          71 ns/iter (+/- 5)
```

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